Round

Rounds a number to the nearest integer, with halves rounding away from zero.

Category: Math Returns: int

Signature

Round(value)

The argument can be an int (returns unchanged), decimal, or number. The rounding rule is always “away from zero”: 2.5 rounds to 3, and -2.5 rounds to -3. This differs from banker’s rounding (round-half-to-even), which some languages use as the default.

Examples

Round(3.7)                      // 4
Round(3.2)                      // 3
Round(2.5)                      // 3: away from zero, not banker's
Round(-2.5)                     // -3: away from zero
Round(0.5)                      // 1
Round(hp / count)               // average, rounded to nearest int

Notes

The half-away-from-zero rule is consistent across all inputs. There is no banker’s rounding edge case. For truncation without rounding, use Int. For ceiling or flooring, see Ceil and Floor.